diff options
Diffstat (limited to 'doc/src/snippets/code/doc_src_qsignalspy.qdoc')
-rw-r--r-- | doc/src/snippets/code/doc_src_qsignalspy.qdoc | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/doc/src/snippets/code/doc_src_qsignalspy.qdoc b/doc/src/snippets/code/doc_src_qsignalspy.qdoc new file mode 100644 index 0000000..d6b65dc --- /dev/null +++ b/doc/src/snippets/code/doc_src_qsignalspy.qdoc @@ -0,0 +1,41 @@ +//! [0] +QCheckBox *box = ...; +QSignalSpy spy(box, SIGNAL(clicked(bool))); + +// do something that triggers the signal +box->animateClick(); + +QCOMPARE(spy.count(), 1); // make sure the signal was emitted exactly one time +QList<QVariant> arguments = spy.takeFirst(); // take the first signal + +QVERIFY(arguments.at(0).toBool() == true); // verify the first argument +//! [0] + + +//! [1] +QSignalSpy spy(myCustomObject, SIGNAL(mySignal(int, QString, double))); + +myCustomObject->doSomething(); // trigger emission of the signal + +QList<QVariant> arguments = spy.takeFirst(); +QVERIFY(arguments.at(0).type() == QVariant::Int); +QVERIFY(arguments.at(1).type() == QVariant::QString); +QVERIFY(arguments.at(2).type() == QVariant::double); +//! [1] + + +//! [2] +qRegisterMetaType<QModelIndex>("QModelIndex"); +QSignalSpy spy(&model, SIGNAL(whatever(QModelIndex))); +//! [2] + + +//! [3] +// get the first argument from the first received signal: +QModelIndex result = qvariant_cast<QModelIndex>(spy.at(0).at(0)); +//! [3] + + +//! [4] +QSignalSpy spy(myPushButton, SIGNAL(clicked(bool))); +//! [4] |